'use strict';

let NOW;
// Include a performance.now polyfill.
// In node.js, use process.hrtime.
// eslint-disable-next-line
// @ts-ignore
if (typeof self === 'undefined' && typeof process !== 'undefined' && process.hrtime) {
  NOW = function () {
    // eslint-disable-next-line
        // @ts-ignore
    const time = process.hrtime();
    // Convert [seconds, nanoseconds] to milliseconds.
    return time[0] * 1000 + time[1] / 1000000;
  };
}
// In a browser, use self.performance.now if it is available.
else if (
  typeof self !== 'undefined' &&
  self.performance !== undefined &&
  self.performance.now !== undefined
) {
  // This must be bound, because directly assigning this function
  // leads to an invocation exception in Chrome.
  NOW = self.performance.now.bind(self.performance);
}
// Use Date.now if it is available.
else if (Date.now !== undefined) {
  NOW = Date.now;
}
// Otherwise, use 'new Date().getTime()'.
else {
  NOW = function () {
    return new Date().getTime();
  };
}
const NOW$1 = NOW;

/**
 * Controlling groups of tweens
 *
 * Using the TWEEN singleton to manage your tweens can cause issues in large apps with many components.
 * In these cases, you may want to create your own smaller groups of tween
 */
const Group = /** @class */ (function () {
  function Group() {
    this._tweens = {};
    this._tweensAddedDuringUpdate = {};
  }
  Group.prototype.getAll = function () {
    const _this = this;
    return Object.keys(this._tweens).map(function (tweenId) {
      return _this._tweens[tweenId];
    });
  };
  Group.prototype.removeAll = function () {
    this._tweens = {};
  };
  Group.prototype.add = function (tween) {
    this._tweens[tween.getId()] = tween;
    this._tweensAddedDuringUpdate[tween.getId()] = tween;
  };
  Group.prototype.remove = function (tween) {
    delete this._tweens[tween.getId()];
    delete this._tweensAddedDuringUpdate[tween.getId()];
  };
  Group.prototype.update = function (time, preserve) {
    let tweenIds = Object.keys(this._tweens);
    if (tweenIds.length === 0) {
      return false;
    }
    time = time !== undefined ? time : NOW$1();
    // Tweens are updated in "batches". If you add a new tween during an
    // update, then the new tween will be updated in the next batch.
    // If you remove a tween during an update, it may or may not be updated.
    // However, if the removed tween was added during the current batch,
    // then it will not be updated.
    while (tweenIds.length > 0) {
      this._tweensAddedDuringUpdate = {};
      for (let i = 0; i < tweenIds.length; i++) {
        const tween = this._tweens[tweenIds[i]];
        if (tween && tween.update(time) === false && !preserve) {
          delete this._tweens[tweenIds[i]];
        }
      }
      tweenIds = Object.keys(this._tweensAddedDuringUpdate);
    }
    return true;
  };
  return Group;
})();

/**
 * The Ease class provides a collection of easing functions for use with tween.js.
 */
var Easing = {
  Linear: {
    None(amount) {
      return amount;
    },
  },
  Quadratic: {
    In(amount) {
      return amount * amount;
    },
    Out(amount) {
      return amount * (2 - amount);
    },
    InOut(amount) {
      if ((amount *= 2) < 1) {
        return 0.5 * amount * amount;
      }
      return -0.5 * (--amount * (amount - 2) - 1);
    },
  },
  Cubic: {
    In(amount) {
      return amount * amount * amount;
    },
    Out(amount) {
      return --amount * amount * amount + 1;
    },
    InOut(amount) {
      if ((amount *= 2) < 1) {
        return 0.5 * amount * amount * amount;
      }
      return 0.5 * ((amount -= 2) * amount * amount + 2);
    },
  },
  Quartic: {
    In(amount) {
      return amount * amount * amount * amount;
    },
    Out(amount) {
      return 1 - --amount * amount * amount * amount;
    },
    InOut(amount) {
      if ((amount *= 2) < 1) {
        return 0.5 * amount * amount * amount * amount;
      }
      return -0.5 * ((amount -= 2) * amount * amount * amount - 2);
    },
  },
  Quintic: {
    In(amount) {
      return amount * amount * amount * amount * amount;
    },
    Out(amount) {
      return --amount * amount * amount * amount * amount + 1;
    },
    InOut(amount) {
      if ((amount *= 2) < 1) {
        return 0.5 * amount * amount * amount * amount * amount;
      }
      return 0.5 * ((amount -= 2) * amount * amount * amount * amount + 2);
    },
  },
  Sinusoidal: {
    In(amount) {
      return 1 - Math.cos((amount * Math.PI) / 2);
    },
    Out(amount) {
      return Math.sin((amount * Math.PI) / 2);
    },
    InOut(amount) {
      return 0.5 * (1 - Math.cos(Math.PI * amount));
    },
  },
  Exponential: {
    In(amount) {
      return amount === 0 ? 0 : Math.pow(1024, amount - 1);
    },
    Out(amount) {
      return amount === 1 ? 1 : 1 - Math.pow(2, -10 * amount);
    },
    InOut(amount) {
      if (amount === 0) {
        return 0;
      }
      if (amount === 1) {
        return 1;
      }
      if ((amount *= 2) < 1) {
        return 0.5 * Math.pow(1024, amount - 1);
      }
      return 0.5 * (-Math.pow(2, -10 * (amount - 1)) + 2);
    },
  },
  Circular: {
    In(amount) {
      return 1 - Math.sqrt(1 - amount * amount);
    },
    Out(amount) {
      return Math.sqrt(1 - --amount * amount);
    },
    InOut(amount) {
      if ((amount *= 2) < 1) {
        return -0.5 * (Math.sqrt(1 - amount * amount) - 1);
      }
      return 0.5 * (Math.sqrt(1 - (amount -= 2) * amount) + 1);
    },
  },
  Elastic: {
    In(amount) {
      if (amount === 0) {
        return 0;
      }
      if (amount === 1) {
        return 1;
      }
      return -Math.pow(2, 10 * (amount - 1)) * Math.sin((amount - 1.1) * 5 * Math.PI);
    },
    Out(amount) {
      if (amount === 0) {
        return 0;
      }
      if (amount === 1) {
        return 1;
      }
      return Math.pow(2, -10 * amount) * Math.sin((amount - 0.1) * 5 * Math.PI) + 1;
    },
    InOut(amount) {
      if (amount === 0) {
        return 0;
      }
      if (amount === 1) {
        return 1;
      }
      amount *= 2;
      if (amount < 1) {
        return -0.5 * Math.pow(2, 10 * (amount - 1)) * Math.sin((amount - 1.1) * 5 * Math.PI);
      }
      return 0.5 * Math.pow(2, -10 * (amount - 1)) * Math.sin((amount - 1.1) * 5 * Math.PI) + 1;
    },
  },
  Back: {
    In(amount) {
      const s = 1.70158;
      return amount * amount * ((s + 1) * amount - s);
    },
    Out(amount) {
      const s = 1.70158;
      return --amount * amount * ((s + 1) * amount + s) + 1;
    },
    InOut(amount) {
      const s = 1.70158 * 1.525;
      if ((amount *= 2) < 1) {
        return 0.5 * (amount * amount * ((s + 1) * amount - s));
      }
      return 0.5 * ((amount -= 2) * amount * ((s + 1) * amount + s) + 2);
    },
  },
  Bounce: {
    In(amount) {
      return 1 - Easing.Bounce.Out(1 - amount);
    },
    Out(amount) {
      if (amount < 1 / 2.75) {
        return 7.5625 * amount * amount;
      }
      if (amount < 2 / 2.75) {
        return 7.5625 * (amount -= 1.5 / 2.75) * amount + 0.75;
      }
      if (amount < 2.5 / 2.75) {
        return 7.5625 * (amount -= 2.25 / 2.75) * amount + 0.9375;
      }
      return 7.5625 * (amount -= 2.625 / 2.75) * amount + 0.984375;
    },
    InOut(amount) {
      if (amount < 0.5) {
        return Easing.Bounce.In(amount * 2) * 0.5;
      }
      return Easing.Bounce.Out(amount * 2 - 1) * 0.5 + 0.5;
    },
  },
};

/**
 *
 */
var Interpolation = {
  Linear(v, k) {
    const m = v.length - 1;
    const f = m * k;
    const i = Math.floor(f);
    const fn = Interpolation.Utils.Linear;
    if (k < 0) {
      return fn(v[0], v[1], f);
    }
    if (k > 1) {
      return fn(v[m], v[m - 1], m - f);
    }
    return fn(v[i], v[i + 1 > m ? m : i + 1], f - i);
  },
  Bezier(v, k) {
    let b = 0;
    const n = v.length - 1;
    const pw = Math.pow;
    const bn = Interpolation.Utils.Bernstein;
    for (let i = 0; i <= n; i++) {
      b += pw(1 - k, n - i) * pw(k, i) * v[i] * bn(n, i);
    }
    return b;
  },
  CatmullRom(v, k) {
    const m = v.length - 1;
    let f = m * k;
    let i = Math.floor(f);
    const fn = Interpolation.Utils.CatmullRom;
    if (v[0] === v[m]) {
      if (k < 0) {
        i = Math.floor((f = m * (1 + k)));
      }
      return fn(v[(i - 1 + m) % m], v[i], v[(i + 1) % m], v[(i + 2) % m], f - i);
    }
    if (k < 0) {
      return v[0] - (fn(v[0], v[0], v[1], v[1], -f) - v[0]);
    }
    if (k > 1) {
      return v[m] - (fn(v[m], v[m], v[m - 1], v[m - 1], f - m) - v[m]);
    }
    return fn(v[i ? i - 1 : 0], v[i], v[m < i + 1 ? m : i + 1], v[m < i + 2 ? m : i + 2], f - i);
  },
  Utils: {
    Linear(p0, p1, t) {
      return (p1 - p0) * t + p0;
    },
    Bernstein(n, i) {
      const fc = Interpolation.Utils.Factorial;
      return fc(n) / fc(i) / fc(n - i);
    },
    Factorial: (function () {
      const a = [1];
      return function (n) {
        let s = 1;
        if (a[n]) {
          return a[n];
        }
        for (let i = n; i > 1; i--) {
          s *= i;
        }
        a[n] = s;
        return s;
      };
    })(),
    CatmullRom(p0, p1, p2, p3, t) {
      const v0 = (p2 - p0) * 0.5;
      const v1 = (p3 - p1) * 0.5;
      const t2 = t * t;
      const t3 = t * t2;
      return (2 * p1 - 2 * p2 + v0 + v1) * t3 + (-3 * p1 + 3 * p2 - 2 * v0 - v1) * t2 + v0 * t + p1;
    },
  },
};

/**
 * Utils
 */
const Sequence = /** @class */ (function () {
  function Sequence() {}
  Sequence.nextId = function () {
    return Sequence._nextId++;
  };
  Sequence._nextId = 0;
  return Sequence;
})();

/**
 * Tween.js - Licensed under the MIT license
 * https://github.com/tweenjs/tween.js
 * ----------------------------------------------
 *
 * See https://github.com/tweenjs/tween.js/graphs/contributors for the full list of contributors.
 * Thank you all, you're awesome!
 */
const Tween = /** @class */ (function () {
  function Tween(_object, _group) {
    if (_group === void 0) {
      _group = TWEEN;
    }
    this._object = _object;
    this._group = _group;
    this._isPaused = false;
    this._pauseStart = 0;
    this._valuesStart = {};
    this._valuesEnd = {};
    this._valuesStartRepeat = {};
    this._duration = 1000;
    this._initialRepeat = 0;
    this._repeat = 0;
    this._yoyo = false;
    this._isPlaying = false;
    this._reversed = false;
    this._delayTime = 0;
    this._startTime = 0;
    this._easingFunction = TWEEN.Easing.Linear.None;
    this._interpolationFunction = TWEEN.Interpolation.Linear;
    this._chainedTweens = [];
    this._onStartCallbackFired = false;
    this._id = TWEEN.nextId();
    this._isChainStopped = false;
  }
  Tween.prototype.getId = function () {
    return this._id;
  };
  Tween.prototype.isPlaying = function () {
    return this._isPlaying;
  };
  Tween.prototype.isPaused = function () {
    return this._isPaused;
  };
  Tween.prototype.to = function (properties, duration) {
    // to (properties, duration) {
    for (const prop in properties) {
      this._valuesEnd[prop] = properties[prop];
    }
    if (duration !== undefined) {
      this._duration = duration;
    }
    return this;
  };
  Tween.prototype.duration = function (d) {
    this._duration = d;
    return this;
  };
  Tween.prototype.start = function (time) {
    if (this._isPlaying) {
      return this;
    }
    // eslint-disable-next-line
        // @ts-ignore FIXME?
    this._group.add(this);
    this._repeat = this._initialRepeat;
    if (this._reversed) {
      // If we were reversed (f.e. using the yoyo feature) then we need to
      // flip the tween direction back to forward.
      this._reversed = false;
      for (const property in this._valuesStartRepeat) {
        this._swapEndStartRepeatValues(property);
        this._valuesStart[property] = this._valuesStartRepeat[property];
      }
    }
    this._isPlaying = true;
    this._isPaused = false;
    this._onStartCallbackFired = false;
    this._isChainStopped = false;
    this._startTime =
      time !== undefined
        ? typeof time === 'string'
          ? TWEEN.now() + parseFloat(time)
          : time
        : TWEEN.now();
    this._startTime += this._delayTime;
    this._setupProperties(
      this._object,
      this._valuesStart,
      this._valuesEnd,
      this._valuesStartRepeat
    );
    return this;
  };
  Tween.prototype._setupProperties = function (
    _object,
    _valuesStart,
    _valuesEnd,
    _valuesStartRepeat
  ) {
    for (const property in _valuesEnd) {
      const startValue = _object[property];
      const startValueIsArray = Array.isArray(startValue);
      const propType = startValueIsArray ? 'array' : typeof startValue;
      const isInterpolationList = !startValueIsArray && Array.isArray(_valuesEnd[property]);
      // If `to()` specifies a property that doesn't exist in the source object,
      // we should not set that property in the object
      if (propType === 'undefined' || propType === 'function') {
        continue;
      }
      // Check if an Array was provided as property value
      if (isInterpolationList) {
        let endValues = _valuesEnd[property];
        if (endValues.length === 0) {
          continue;
        }
        // handle an array of relative values
        endValues = endValues.map(this._handleRelativeValue.bind(this, startValue));
        // Create a local copy of the Array with the start value at the front
        _valuesEnd[property] = [startValue].concat(endValues);
      }
      // handle the deepness of the values
      if ((propType === 'object' || startValueIsArray) && startValue && !isInterpolationList) {
        _valuesStart[property] = startValueIsArray ? [] : {};
        // eslint-disable-next-line
                for (var prop in startValue) {
          // eslint-disable-next-line
                    // @ts-ignore FIXME?
          _valuesStart[property][prop] = startValue[prop];
        }
        _valuesStartRepeat[property] = startValueIsArray ? [] : {}; // TODO? repeat nested values? And yoyo? And array values?
        // eslint-disable-next-line
                // @ts-ignore FIXME?
        this._setupProperties(
          startValue,
          _valuesStart[property],
          _valuesEnd[property],
          _valuesStartRepeat[property]
        );
      } else {
        // Save the starting value, but only once.
        if (typeof _valuesStart[property] === 'undefined') {
          _valuesStart[property] = startValue;
        }
        if (!startValueIsArray) {
          // eslint-disable-next-line
                    // @ts-ignore FIXME?
          _valuesStart[property] *= 1.0; // Ensures we're using numbers, not strings
        }
        if (isInterpolationList) {
          // eslint-disable-next-line
                    // @ts-ignore FIXME?
          _valuesStartRepeat[property] = _valuesEnd[property].slice().reverse();
        } else {
          _valuesStartRepeat[property] = _valuesStart[property] || 0;
        }
      }
    }
  };
  Tween.prototype.stop = function () {
    if (!this._isChainStopped) {
      this._isChainStopped = true;
      this.stopChainedTweens();
    }
    if (!this._isPlaying) {
      return this;
    }
    // eslint-disable-next-line
        // @ts-ignore FIXME?
    this._group.remove(this);
    this._isPlaying = false;
    this._isPaused = false;
    if (this._onStopCallback) {
      this._onStopCallback(this._object);
    }
    return this;
  };
  Tween.prototype.end = function () {
    this.update(Infinity);
    return this;
  };
  Tween.prototype.pause = function (time) {
    if (this._isPaused || !this._isPlaying) {
      return this;
    }
    this._isPaused = true;
    this._pauseStart = time === undefined ? TWEEN.now() : time;
    // eslint-disable-next-line
        // @ts-ignore FIXME?
    this._group.remove(this);
    return this;
  };
  Tween.prototype.resume = function (time) {
    if (!this._isPaused || !this._isPlaying) {
      return this;
    }
    this._isPaused = false;
    this._startTime += (time === undefined ? TWEEN.now() : time) - this._pauseStart;
    this._pauseStart = 0;
    // eslint-disable-next-line
        // @ts-ignore FIXME?
    this._group.add(this);
    return this;
  };
  Tween.prototype.stopChainedTweens = function () {
    for (let i = 0, numChainedTweens = this._chainedTweens.length; i < numChainedTweens; i++) {
      this._chainedTweens[i].stop();
    }
    return this;
  };
  Tween.prototype.group = function (group) {
    this._group = group;
    return this;
  };
  Tween.prototype.delay = function (amount) {
    this._delayTime = amount;
    return this;
  };
  Tween.prototype.repeat = function (times) {
    this._initialRepeat = times;
    this._repeat = times;
    return this;
  };
  Tween.prototype.repeatDelay = function (amount) {
    this._repeatDelayTime = amount;
    return this;
  };
  Tween.prototype.yoyo = function (yoyo) {
    this._yoyo = yoyo;
    return this;
  };
  Tween.prototype.easing = function (easingFunction) {
    this._easingFunction = easingFunction;
    return this;
  };
  Tween.prototype.interpolation = function (interpolationFunction) {
    this._interpolationFunction = interpolationFunction;
    return this;
  };
  Tween.prototype.chain = function () {
    const tweens = [];
    for (let _i = 0; _i < arguments.length; _i++) {
      tweens[_i] = arguments[_i];
    }
    this._chainedTweens = tweens;
    return this;
  };
  Tween.prototype.onStart = function (callback) {
    this._onStartCallback = callback;
    return this;
  };
  Tween.prototype.onUpdate = function (callback) {
    this._onUpdateCallback = callback;
    return this;
  };
  Tween.prototype.onRepeat = function (callback) {
    this._onRepeatCallback = callback;
    return this;
  };
  Tween.prototype.onComplete = function (callback) {
    this._onCompleteCallback = callback;
    return this;
  };
  Tween.prototype.onStop = function (callback) {
    this._onStopCallback = callback;
    return this;
  };
  Tween.prototype.update = function (time) {
    let property;
    let elapsed;
    const endTime = this._startTime + this._duration;
    if (time > endTime && !this._isPlaying) {
      return false;
    }
    // If the tween was already finished,
    if (!this.isPlaying) {
      this.start(time);
    }
    if (time < this._startTime) {
      return true;
    }
    if (this._onStartCallbackFired === false) {
      if (this._onStartCallback) {
        this._onStartCallback(this._object);
      }
      this._onStartCallbackFired = true;
    }
    elapsed = (time - this._startTime) / this._duration;
    elapsed = this._duration === 0 || elapsed > 1 ? 1 : elapsed;
    const value = this._easingFunction(elapsed);
    // properties transformations
    this._updateProperties(this._object, this._valuesStart, this._valuesEnd, value);
    if (this._onUpdateCallback) {
      this._onUpdateCallback(this._object, elapsed);
    }
    if (elapsed === 1) {
      if (this._repeat > 0) {
        if (isFinite(this._repeat)) {
          this._repeat--;
        }
        // Reassign starting values, restart by making startTime = now
        for (property in this._valuesStartRepeat) {
          if (!this._yoyo && typeof this._valuesEnd[property] === 'string') {
            this._valuesStartRepeat[property] =
              // eslint-disable-next-line
                            // @ts-ignore FIXME?
              this._valuesStartRepeat[property] + parseFloat(this._valuesEnd[property]);
          }
          if (this._yoyo) {
            this._swapEndStartRepeatValues(property);
          }
          this._valuesStart[property] = this._valuesStartRepeat[property];
        }
        if (this._yoyo) {
          this._reversed = !this._reversed;
        }
        if (this._repeatDelayTime !== undefined) {
          this._startTime = time + this._repeatDelayTime;
        } else {
          this._startTime = time + this._delayTime;
        }
        if (this._onRepeatCallback) {
          this._onRepeatCallback(this._object);
        }
        return true;
      }
      if (this._onCompleteCallback) {
        this._onCompleteCallback(this._object);
      }
      for (let i = 0, numChainedTweens = this._chainedTweens.length; i < numChainedTweens; i++) {
        // Make the chained tweens start exactly at the time they should,
        // even if the `update()` method was called way past the duration of the tween
        this._chainedTweens[i].start(this._startTime + this._duration);
      }
      this._isPlaying = false;
      return false;
    }
    return true;
  };
  Tween.prototype._updateProperties = function (_object, _valuesStart, _valuesEnd, value) {
    for (const property in _valuesEnd) {
      // Don't update properties that do not exist in the source object
      if (_valuesStart[property] === undefined) {
        continue;
      }
      const start = _valuesStart[property] || 0;
      let end = _valuesEnd[property];
      const startIsArray = Array.isArray(_object[property]);
      const endIsArray = Array.isArray(end);
      const isInterpolationList = !startIsArray && endIsArray;
      if (isInterpolationList) {
        _object[property] = this._interpolationFunction(end, value);
      } else if (typeof end === 'object' && end) {
        // eslint-disable-next-line
                // @ts-ignore FIXME?
        this._updateProperties(_object[property], start, end, value);
      } else {
        // Parses relative end values with start as base (e.g.: +10, -3)
        end = this._handleRelativeValue(start, end);
        // Protect against non numeric properties.
        if (typeof end === 'number') {
          // eslint-disable-next-line
                    // @ts-ignore FIXME?
          _object[property] = start + (end - start) * value;
        }
      }
    }
  };
  Tween.prototype._handleRelativeValue = function (start, end) {
    if (typeof end !== 'string') {
      return end;
    }
    if (end.charAt(0) === '+' || end.charAt(0) === '-') {
      return start + parseFloat(end);
    }
    return parseFloat(end);
  };
  Tween.prototype._swapEndStartRepeatValues = function (property) {
    const tmp = this._valuesStartRepeat[property];
    if (typeof this._valuesEnd[property] === 'string') {
      // eslint-disable-next-line
            // @ts-ignore FIXME?
      this._valuesStartRepeat[property] =
        this._valuesStartRepeat[property] + parseFloat(this._valuesEnd[property]);
    } else {
      this._valuesStartRepeat[property] = this._valuesEnd[property];
    }
    this._valuesEnd[property] = tmp;
  };
  return Tween;
})();

const VERSION = '18.5.0';

/**
 * Tween.js - Licensed under the MIT license
 * https://github.com/tweenjs/tween.js
 * ----------------------------------------------
 *
 * See https://github.com/tweenjs/tween.js/graphs/contributors for the full list of contributors.
 * Thank you all, you're awesome!
 */
const __extends =
  (this && this.__extends) ||
  (function () {
    var extendStatics = function (d, b) {
      extendStatics =
        Object.setPrototypeOf ||
        ({ __proto__: [] } instanceof Array &&
          function (d, b) {
            d.__proto__ = b;
          }) ||
        function (d, b) {
          for (const p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
        };
      return extendStatics(d, b);
    };
    return function (d, b) {
      extendStatics(d, b);
      function __() {
        this.constructor = d;
      }
      d.prototype = b === null ? Object.create(b) : ((__.prototype = b.prototype), new __());
    };
  })();
/**
 * Controlling groups of tweens
 *
 * Using the TWEEN singleton to manage your tweens can cause issues in large apps with many components.
 * In these cases, you may want to create your own smaller groups of tween
 */
const Main = /** @class */ (function (_super) {
  __extends(Main, _super);
  function Main() {
    const _this = (_super !== null && _super.apply(this, arguments)) || this;
    _this.version = VERSION;
    _this.now = NOW$1;
    _this.Group = Group;
    _this.Easing = Easing;
    _this.Interpolation = Interpolation;
    _this.nextId = Sequence.nextId;
    _this.Tween = Tween;
    return _this;
  }
  return Main;
})(Group);
var TWEEN = new Main();

module.exports = TWEEN;
